Siemens SINUMERIK 840D sl Function Manual page 1800

Detailed Description
2.1 Tool
The next tool is preselected with the machine data:
MD20121 $MC_TOOL_PRESEL_RESET_VALUE (Preselected tool at RESET)
Its tool length compensation values must be considered at RESET and powerup according to
machine data:
MD20110 $MC_RESET_MODE_MASK (Determination of control default settings after
RESET/TP end).
Value range of T
The T function accepts the following whole numbers:
• From T0 (no tool)
• To T32000 (tool number 32000).
Tool cutting edge
Each tool can have up to 9 cutting edges. The 9 tool cutting edges are assigned to the D
functions D1 to D9.
Figure 2-1
D function
The tool cutting edge is programmed with D1 (edge 1) to D9 (edge 9). The tool cutting edge
always refers to the currently active tool. An active tool cutting edge (D1 to D9) without an
active tool (T0) is inactive. Tool cutting edge D0 deselects all tool compensations of the
active tool.
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Example of a tool T... with 9 cutting edges (D1 to D9)
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0